A free bulk email verifier that checks a whole list in your browser, 1 lookup per domain, and marks every address.
5.0(1 rating)Paste your addresses or drop a CSV export. See which are valid, risky or invalid, with duplicates and typos found, and download the result.
Your list
Everything runs in your browser: nothing is uploaded, and no email is sent. A free check can't ask a mail server whether a mailbox exists; paid verifiers do that.
This free bulk email verifier checks a whole list of addresses at once: paste them or drop a CSV, and see which are valid, risky or invalid, with duplicates and typos found.
Each domain is looked up once, however many addresses share it, so a big list needs far fewer lookups than addresses.
What is a bulk email verifier?
A bulk email verifier checks many email addresses in one go, so you can remove the ones that would bounce before you import or send.
What it checks for each address
The same checks as the email verifier, for every row:
- Its form, to the email standard
- Whether its domain exists and takes email
- Throwaway domains, from an open list of 8,985
- Role addresses like info@ and support@
- Typos of common domains, like gmial.com
- Duplicates, compared without case
Each row comes back valid, risky or invalid, with its reasons.
Your CSV stays yours
The list is read in your browser and never uploaded. The download keeps your columns, like names, tags and dates, and only drops the rows you choose.
Final thoughts on bulk email verification
Verify before every import into a new email platform, and before you send to a list you haven't emailed in months.
Then clean it with the email list cleaner, with typos fixed in the same download.
Ready to send to a clean list?
Email platforms that set up SPF, DKIM and DMARC with you
For developers: send from your own app
Bulk Email Verifier FAQs
Questions about verifying a whole list? Here's what to know.
A bulk email verifier checks a whole list of email addresses at once and marks each one valid, risky or invalid.
Up to 50,000 addresses a list, checked in your browser.
Any CSV or text export: the verifier finds the column with the email addresses, or reads 1 address a line.
No, the list is read in your browser and never leaves it.
Yes, the same address written twice is marked a duplicate, compared without case.
The download keeps only the first.
Yes, the bulk email verifier is free, with no sign-up.
Navid Moazzez
AI business strategist & AI OS builder
Navid Moazzez helps creators and founders master AI and build their own AI Operating System (AI OS) to automate their business and life.
Navid.me is reader-supported. When you buy through links on this site, I may earn an affiliate commission. Learn more.
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